Wave spring with stepwise progressive spring characteristics

摘要

The spring (11) is designed for use singly or in groups fitting together. It consists of a washer with a central aperture and irregular corrugations around its circumference to give several maxima (12,13,17) and several minima (14,15,16). The spring washer is designed to give a stepwise progressive characteristic. The spring or group of springs may be sandwiched between two plain washers.